This report summarizes all water quality data collected
from Sherman Lake, which is part of the Gull Creek Sub-Watershed, which is part of the larger
Kalamazoo River Watershed. (see map to the right)

Water sampling and measurements are conducted by Environmental
Health Bureau staff.

Gull Creek at Gage #04105800 (State of Michigan Basin ID #: 17 50)

Sherman Lake

SHL-05

MDNR Public access boat launch site

Ross Township (29)

Site Code: SHL-05, Sherman Lake

Sample

Sample

E. coli Bacteria

Water Temperature

Dissolved Oxygen

pH

Conductivity

TDS

Turbidity

Date

Time

(MPN)

(degrees F)

mg/L

% Saturation

(units)

(mS / cm)

(g / L)

(NTU)

11/29/2005

10:35

17.8

40.3

9.5

75.5%

8.14

0.200

0.1

1.9

10/20/2005

10:05

1.0

58.2

7.2

69.6%

8.33

0.187

0.1

6.2

09/15/2005

14:10

8.5

74.8

8.9

107.1%

9.04

0.176

0.1

3.1

08/04/2005

10:20

2.0

82.6

7.3

96.7%

8.86

0.176

0.1

4.2

06/16/2005

10:15

2.0

75.2

6.1

79.7%

8.49

0.197

0.1

7.7

04/21/2005

12:50

43.5

N/A

N/A

N/A

N/A

N/A

N/A

N/A

04/05/2005

12:00

1.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

09/09/2004

12:20

1.0

76.1

6.5

77.6%

8.63

0.176

0.1

2.0

09/02/2004

13:28

6.2

77.4

7.5

90.6%

8.57

0.174

0.1

0.7

08/06/2004

13:50

2.0

77.5

7.3

90.2%

8.76

0.163

0.1

1.4

07/01/2004

09:30

1.0

75.1

9.3

112.2%

8.54

0.177

0.1

1.7

05/28/2004

11:00

1.0

66.3

9.1

101.5%

8.53

0.181

0.1

1.6

08/18/2003

10:55

6.3

80.0

7.7

98.7%

8.48

0.148

0.1

0.8

07/14/2003

11:10

5.2

79.1

8.1

103.0%

8.65

0.180

0.1

6.7

06/16/2003

12:25

4.1

73.8

8.7

105.2%

8.35

0.186

0.1

2.8

05/13/2003

12:57

8.3

57.9

7.7

77.3%

8.13

0.196

0.1

2.8

11/14/2002

15:05

1.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

10/24/2002

13:40

1.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

10/10/2002

12:55

3.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

09/26/2002

14:45

2.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

09/12/2002

13:20

1.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

08/29/2002

13:10

1.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

08/15/2002

14:30

3.1

N/A

N/A

N/A

N/A

N/A

N/A

N/A

08/01/2002

15:05

307.6

N/A

N/A

N/A

N/A

N/A

N/A

N/A

07/18/2002

14:50

344.8

N/A

N/A

N/A

N/A

N/A

N/A

N/A

06/20/2002

14:20

3.0

N/A

N/A

N/A

N/A

N/A

N/A

N/A

05/16/2002

12:20

1.0

58.0

N/A

N/A

N/A

N/A

N/A

N/A

08/13/2001

10:05

6.3

80.6

N/A

N/A

N/A

N/A

N/A

N/A

07/30/2001

10:12

2.0

76.9

N/A

N/A

N/A

N/A

N/A

N/A

07/16/2001

10:10

290.9

N/A

N/A

N/A

N/A

N/A

N/A

N/A

07/05/2001

12:50

4.1

78.0

N/A

N/A

N/A

N/A

N/A

N/A

06/18/2001

11:08

6.2

75.0

N/A

N/A

N/A

N/A

N/A

N/A

06/04/2001

11:25

1.0

65.0

N/A

N/A

N/A

N/A

N/A

N/A

05/21/2001

10:58

24.3

70.0

N/A

N/A

N/A

N/A

N/A

N/A

05/07/2001

09:37

1.0

63.9

N/A

N/A

N/A

N/A

N/A

N/A

SummaryStatistics

Count

35

22

14

14

14

14

14

14

Average

31.9

71.0

7.9

91.8%

8.54

0.180

0.1

3.1

Minumum

1.0

40.3

6.1

69.6%

8.13

0.148

0.1

0.7

Maximum

344.8

82.6

9.5

112.2%

9.04

0.200

0.1

7.7

Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for SHL-05 (Sherman Lake) between May 2001 and November 2005. This site is located in Section Number 29 of Ross Township, MDNR Public access boat launch site.

2 out of 35 water sample results exceeded 300 bacteria colonies per 100 ml of water.

1 out of 35 water sample results were between 130 and 299 bacteria colonies per 100 ml of water.

32 out of 35 water sample results were less than 130 bacteria colonies per 100 ml of water.